Henk den Hartog runs a farm with 130 cows together with his wife. The natural grasslands around the farm in Abcoude, the Netherlands, are grazed by the cows, but also by sheep and oxen. In this way, Hartstocht contributes to nature management.

Hartstocht is an organic dairy farm and doesn't use fertilisers and pesticides. The Hartog family has turned it into a versatile company. There is also a farm shop with organic products. In addition, Hartstocht organises educational programs for school classes. You can also spend the night on the farm or organise a company outing or workshop during the day.